Leatt Hydration Bladder Flat CleanTech Luggage Accessories - 0.75L/25oz Burst tested Twist-Lock hose connector with auto shut off valve Ships with two tube and bite valve kits: Hands free tube with 180 valve and Standard tube with 45 valve One touch quick release valve on the hands-free tube system Helmet Velcro patch and loops to keep system in place for the hands free system